...
> >> > +static int meson_a1_pll_init(struct clk_hw *hw)
> >> > +{
> >> > + struct clk_regmap *clk = to_clk_regmap(hw);
> >> > + struct meson_a1_pll_data *pll = meson_a1_pll_data(clk);
> >> > +
> >> > + regmap_multi_reg_write(clk->map, pll->base.init_regs,
> >> > + pll->base.init_count);
> >> > +
> >> > + return 0;
> >>
> >> Looks the the default init mostly
> >>
> >> Looks like you are trying the handle the absence of the rst bit.
> >> I'm pretty sure the hifi PLL of the SoC as one but you really don't want
> >> to poke, this can be in the generic driver, with MESON_PARM_APPLICABLE()
> >> test.
> >>
> >> No need to redefine this
> >>
> >
> > I've redefined it, because in the previous v7 you mentioned that's
> > not acceptable to mix init/enable/disable sequences between a1 pll and clk
> > common pll driver:
> >
> > https://lore.kernel.org/linux-amlogic/1jd0ac5kpk.fsf@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> >
> > Hmmm, looks like I've made a mistake. You meant only enable/disable
> > callbacks...
> >
> > Anyway, it doesn't matter to me. I think both approaches are okay:
> > * clk-pll customization using MESON_PARM_APPLICABLE()
> > * custom callbacks implementation for some clk_ops like implemented in
> > this patchset.
> >
> > Please advise what's the best from you point of view?
>
> It is a balance.
>
> Everytime a new PLL comes up, it tends to treaded as a new ip block but,
> most of the time after some digging and rework, we learn new things and
> it ends up being compatible with the previous ones.
>
> From what I see here
> * You are trying to make rst optional, that's fine. Do it with
> MESON_PARM_APPLICABLE() in the main driver. Still I would recommend to
> thorougly for this bit. I'm pretty sure the hifi pll has one.
>
> * You add a new feature called current self-adaptation.
> This can be made optional too in the enable sequence.
> I would not be surprised to find out more PLL have that, even on
> earlier SoC.
Okay, I see.
I will try to modify clk-pll driver in accurate way to support rst
optional bit and current self-adaptation optional IP.
...
--
Thank you,
Dmitry
